CVE-2026-94624

Description

vLLM through 0.29.0 contains a denial of service vulnerability in P2P KV offloading when OffloadingConnector is configured with TieringOffloadingSpec and a peer-to-peer secondary tier. Attackers can supply arbitrary remote host and port values in kv_transfer_params to create unreachable peer sessions that retain ZeroMQ sockets until the context quota is exhausted, causing an uncaught ZMQError that crashes EngineCore and stops all inference.

References

https://www.vulncheck.com/advisories/vllm-through-0.29.0-denial-of-service-via-unbounded-p2p-kv-offloading-sessions

https://github.com/vllm-project/vllm/security/advisories/GHSA-frvg-qw88-hww9

https://github.com/vllm-project/vllm/releases/tag/v0.32.0

https://github.com/vllm-project/vllm/pull/51504

https://github.com/vllm-project/vllm/commit/93d2cab35e8ae66bbaa1dea1c077986d5a79eb80

https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/kv_offload/tiering/p2p/manager.py#L667-L677

https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/kv_offload/tiering/p2p/control/zmq.py#L240-L260

https://github.com/vllm-project/vllm

https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-4006.yaml

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-84218

Details

Source: Mitre, NVD

Named Vulnerability: GHSA-frvg-qw88-hww9Named Vulnerability: GHSA-8qpc-6rxx-4pxf

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS